Specification :

QKA-series CNC pipe thread lathes were developed mainly for the turning of oil-field pipe threads. But now they are also used to the turning of pipe threads of various kinds, e.g. cylindrical and conical threads, threads connected continuously one another, and end-face threads as well, and they can also be used as universal CNC lathes for the turning of circumgyration bodies of various curving generatrices. These machine are suitable for verified work-pieces machining in medium and small batches, and are of good flexibility , high efficiency , finishing up with good conformity, and are easy to program, simple to operate. So they ate ideal medium-type mechanical machining equipment.

Item unit QKA1212 QKA1219
Swing over bed mm 770 770
Swing over carriage mm 480 480
External diameter of pipes mm $ 120 $ 190
Maximum length of workpiece mm 1500( 750/ 1000/ 2000/ 3000) 1500( 750/ 1000/ 2000/ 3000)
Maximum turning length mm 1350( 550/ 800/ 1800/ 2800) 1350( 550/ 800/ 1800/ 2800)
Span of guideway mm 550 550
Spindle nose C15 C15
Step of Spindle speed( Three-phaseasyn-chronous motor) manual 3 steps, auto 6 steps 16 spees manual 2 steps, auto 4 steps 8 spees
Range of spindle speed( Three-phaseasyn-chronous motor) 25-800 90-450
Main motor power kw 11 11
Spindle bore mm 130 200
Chuck type  manual 3 jaw $ 380  manual 3 jaw $ 500
Center height from bed mm 385 385
Min.feed increment of X-/ Z-axis mm 0.001/ 0.001 0.001/ 0.001
Rapid speeds of X-/ Z-axis mm/ min 3000/ 6000 3000/ 6000
Max.travel of x-axis mm 390 390
Tool-post working position Vertical 4-position¡ 240 Vertical 4-position¡ 240
Indexing time s 2.5 2.5
Indexing repeatility " mm 0.008 0.008
Section of tool shank mm ¡ 32 ¡ 32
Diameter of tailstock quill mm 100 100
Travel of tailstock quill mm 250 250
Taper hole of tailstock quill Morse 5 Morse 5
Workpiece accuracy IT6-IT7 IT6-IT7
Surface roughness ¼ m Ra1.6 Ra1.6
Acceptance conditions JB/ T8324.1-96 JB/ T8324.2-96 JB/ T8324.1-96 JB/ T8324.2-96
Machine mass kg 3700/ 3900/ 4200/ 4700/ 5200 3700/ 3900/ 4200/ 4700/ 5200
Length mm 2912/ 3227/ 3677/ 4177/ 5177 2912/ 3227/ 3677/ 4177/ 5177
Width mm 1800 1800
Height mm 1850 1850
 Standard ² Optional